Raw material precise grinding device for cementing material

Abstract

The utility model discloses a raw material precision grinding device for cementing materials, which belongs to the field of building construction equipment and comprises a grinding box, a feeding bin is fixedly arranged at the upper end of the grinding box, a feeding port and a discharging port are respectively arranged at the top and the bottom of the feeding bin, and a discharging control component is arranged in the feeding bin; a discharge hole is formed in the lower end of the side wall of the grinding box; a first motor is arranged on the outer side of the grinding box, an output shaft of the first motor penetrates into the grinding box and is connected with a rotating shaft, and crushing blades are uniformly arranged on the outer surface of the rotating shaft at intervals; a screen is fixedly arranged in the grinding box and located below the rotating shaft, an electric telescopic rod is arranged on the upper surface of the screen, and the free end of the electric telescopic rod is connected with a movable plate. A material guide assembly is arranged below the screen; the technical problems that after an existing raw material grinding device for the cementing materials grinds the cementing materials into powder, the powder is prone to being accumulated on a screen, meshes of the screen are blocked, and normal work of the grinding device is affected are solved.

Description

Technical Field

[0001] The utility model relates to the field of building construction equipment, in particular to a raw material precision grinding device for gelling materials. Background Art

[0002] Cementitious materials are also called binders. This material can be transformed from a slurry state to a solid state under physical or chemical action. It is very hard and can also bond other materials together to make a composite solid substance with certain mechanical strength. It is widely used in civil construction, water conservancy, national defense and other projects.

[0003] Cementitious materials are an indispensable and important component of cement concrete. They are a viscous substance formed by the mixing reaction of cement and water in concrete. They have a bonding effect, realizing the bonding and solidification of concrete, thereby giving concrete better strength, durability and working performance, and thus making concrete a solid structural material.

[0004] When cementitious materials are used to prepare cement concrete, the cementitious materials need to be ground to a suitable particle size in the early stage to form a certain particle gradation, increase its hydration area, accelerate the hydration rate, and meet the hardening requirements of cement paste coagulation. And materials with appropriate fineness are conducive to maintaining a proper thickening speed of the slurry, forming a good pore structure and improving the strength of the green body to accelerate the hardening speed. However, the existing cementitious material raw material grinding device is easy to accumulate on the screen after grinding into powder, causing the mesh of the screen to be blocked, thereby affecting the normal operation of the grinding device. Utility Model Content

[0005] The utility model provides a raw material precision grinding device for gelling materials, which is used to solve the technical problem that after the raw material grinding device for gelling materials is ground into powder, the powder is easily accumulated on the screen, causing the mesh of the screen to be blocked, thus affecting the normal operation of the grinding device.

[0006] In view of this, the utility model provides a raw material precision grinding device for gelling materials, comprising:

[0007] A grinding box, a first motor is arranged outside the grinding box, an output shaft of the first motor penetrates into the grinding box and is connected to a rotating shaft, and crushing blades are arranged evenly spaced on the outer surface of the rotating shaft; a discharge port is arranged at the lower end of the side wall of the grinding box;

[0008] The feed bin is fixed at the upper end of the grinding box, and the top and bottom of the feed bin are respectively provided with a feed inlet and a discharge inlet, and a discharge control component is provided in the feed bin;

[0009] The screen is fixed inside the grinding box and below the rotating shaft. An electric telescopic rod is provided on the upper surface of the screen, and a movable plate is connected to the free end of the electric telescopic rod.

[0010] The material guiding component is arranged below the screen.

[0011] Optionally, the material discharge control component includes a second motor arranged on the outer wall of the feed bin, and a rotating rod connected to the output shaft of the second motor is vertically arranged above the discharge port in the feed bin, and a stopper is provided on the rotating rod. The stopper is slidably connected to the discharge port, and the bottom surface of the stopper has the same shape as the top surface of the discharge port.

[0012] Optionally, it also includes a crushing assembly, which includes a third motor arranged on the outside of the grinding box, a first crushing roller and a second crushing roller arranged in parallel inside the grinding box, the output shaft of the third motor penetrates into the interior of the grinding box and is connected to the first crushing roller, and the first crushing roller is meshingly connected to the second crushing roller.

[0013] Optionally, baffles are respectively arranged on both sides of the bottom of the feed bin, and the two baffles are symmetrically arranged along the feed opening.

[0014] Optionally, the material guiding assembly includes a fourth motor arranged on an inner wall of the grinding box, the output shaft of the fourth motor is connected to a driving roller, a fixed seat is provided at the bottom of the other inner wall of the grinding box, a driven roller is supported on the fixed seat, a conveyor belt is connected between the driving roller and the driven roller, and the driven roller is positioned lower than the driving roller.

[0015] Optionally, a support column is provided at the bottom of the grinding box, a material storage box is provided on the outside of the grinding box, and the top surface of the material storage box is located below the bottom surface of the discharge port.

[0016] Optionally, an observation window is provided below the grinding box.

[0017] It can be seen from the above technical scheme that the raw material precision grinding device of the utility model for gelling materials has the following advantages:

[0018] By setting the material discharge control component, the stopper can switch back and forth between fitting the material discharge port and turning away from the material discharge port, indirectly controlling whether the material is discharged into the grinding box through the material discharge port, achieving the purpose of interval discharge, and then controlling the discharge amount;

[0019] Through the setting of the crushing component and the crushing blade below it, the material is processed twice by crushing and crushing, so as to avoid that large particles of material are not completely crushed, thus affecting the screening of the subsequent screen;

[0020] By arranging an electric telescopic rod on the screen, the electric telescopic rod drives the moving plate to move back and forth continuously on the upper surface of the screen, thereby accelerating the filtering speed of the material on the screen and preventing the material from accumulating on the screen and causing the screen mesh to be blocked. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1It is a schematic structural diagram of a raw material precision grinding device for gelling materials provided in an embodiment of the utility model;

[0022] Figure 2 A schematic diagram of the structure of an observation window of a raw material precision grinding device for a gelling material provided in an embodiment of the utility model;

[0023] Figure 3 This is a schematic diagram of the state in which the stopper provided in the embodiment of the utility model is turned away from the feed opening.

[0024] Wherein, the accompanying drawings are marked as follows:

[0025] 1. Grinding box; 11. First motor; 12. Rotating shaft; 13. Crushing blade; 14. Discharging port; 15. Screen; 16. Electric telescopic rod; 17. Moving plate; 18. Observation window;

[0026] 2. Feed bin; 21. Feeding port; 22. Rotating rod; 23. Stopper; 24. Baffle;

[0027] 31. Fourth motor; 32. Active roller; 33. Fixed seat; 34. Driven roller; 35. Conveyor belt;

[0028] 41. first crushing roller; 42. second crushing roller;

[0029] 5. Storage box; 6. Support column. DETAILED DESCRIPTION

[0030] In order to make the technical personnel in the technical field better understand the scheme of the utility model, the technical scheme in the embodiment of the utility model will be clearly and completely described below in combination with the drawings in the embodiment of the utility model. Obviously, the described embodiment is only a part of the embodiment of the utility model, not all the embodiments. Based on the embodiment in the utility model, all other embodiments obtained by ordinary technicians in the field without creative work are within the scope of protection of the utility model. In the description of the embodiment of the utility model, it should be noted that the orientation or position relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside", etc. is based on the orientation or position relationship shown in the drawings, which is only for the convenience of describing the embodiment of the utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the embodiment of the utility model. In addition, the terms "first", "second", and "third" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0031] In the description of the embodiments of the present utility model, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the embodiments of the present utility model can be understood according to specific circumstances.

[0032] For easier understanding, see Figure 1 to Figure 2 The utility model provides an embodiment of a raw material precision grinding device for a gelling material, comprising: a grinding box 1, a feed bin 2 for holding the raw material of the gelling material to be ground is fixedly provided at the upper end of the grinding box 1, the bottom surface of the feed bin 2 is an arc surface, and a feed port and a discharge port 21 are respectively provided at the top and bottom of the feed bin 2, the discharge port 21 is connected to the inside of the grinding box 1, and the material in the feed bin 2 is sent to the grinding box 1 through the discharge port 21 for grinding, and a discharge control component is provided in the feed bin 2, and the amount of material entering the grinding box 1 from the feed bin 2 is controlled by the discharge control component;

[0033] See also Figure 1 and Figure 3 The material discharge control component includes a second motor arranged on the outer wall of the feeding bin 2, and a rotating rod 22 connected to the output shaft of the second motor is vertically arranged above the feeding port 21 in the feeding bin 2. There are two rotating rods 22, and the two rotating rods 22 are symmetrically arranged along the center of the output shaft of the second motor. A stopper 23 is arranged at one end of the two rotating rods 22 away from the output shaft of the second motor, and a side of the stopper 23 away from the rotating rod 22 is an arc-shaped surface. The second motor is driven to rotate and drive the rotating rod 22 to rotate, thereby driving the stopper 23 connected to the rotating rod 22 to rotate in the feeding bin 2, and the stopper 23 is slidably connected to the feeding port 21. Since the bottom surface of the stopper 23 and the top surface of the feeding port 21 have the same shape as the arc-shaped surface, the stopper 23 can intermittently close the feeding port 21 and turn away from the feeding port 21 under the driving action of the rotating rod 22;

[0034] Specifically, under the driving action of the motor, the rotating rod 22 drives the stopper 23 to perform a circular motion in the feed bin 2. When the stopper 23 rotates to abut against the discharge port 21, the discharge port 21 connected between the feed bin 2 and the grinding box 1 is blocked. When the stopper 23 rotates away from the discharge port 21, the discharge port 21 connected between the feed bin 2 and the grinding box 1 is free of obstacles, so that the feed bin 2 and the grinding box 1 are connected, and the material in the feed bin 2 can enter the grinding box 1; through the repeated cycles of the stopper 23 abutting against the discharge port 21 and the stopper 23 rotating away from the discharge port 21, the material in the feed bin 2 is discharged at intervals, thereby achieving the purpose of indirectly controlling the discharge.

[0035] A crushing assembly is provided inside the grinding box 1. The crushing assembly can preliminarily crush the material after the material is discharged from the feed bin 2. The crushing assembly includes a third motor arranged outside the grinding box 1, a first crushing roller 41 and a second crushing roller 42 arranged in parallel inside the grinding box 1, and the output shaft of the third motor penetrates into the grinding box 1 and is connected to the first crushing roller 41, and the first crushing roller 41 is meshedly connected to the second crushing roller 42; by driving the third motor to rotate, the first crushing roller 41 connected to the third motor is driven to rotate, and then the second crushing roller 42 meshedly connected to the first crushing roller 41 is driven to rotate, so as to crush the material;

[0036] A first motor 11 is provided on the outside of the grinding box 1, and the output shaft of the first motor 11 penetrates into the interior of the grinding box 1 and is connected to a rotating shaft 12, and crushing blades 13 are evenly spaced on the outer surface of the rotating shaft 12; the first motor 11 rotates to drive the rotating shaft 12 to rotate, so that the crushing blades 13 on the rotating shaft 12 can cut and crush the material crushed by the crushing assembly. Through the two processes of crushing and crushing the material, it can further ensure that the material is thoroughly crushed and the fineness of the crushing is improved. At the same time, it can avoid the possibility of the uncrushed material blocking the mesh of the screen 15 during the subsequent screening step.

[0037] A screen 15 is fixedly provided inside the grinding box 1 and below the rotating shaft 12. An electric telescopic rod 16 is provided on the upper surface of the screen 15, and a movable plate 17 is connected to the free end of the electric telescopic rod 16. By controlling the extension and retraction of the electric telescopic rod 16, the movable plate 17 can continuously perform horizontal reciprocating motion on the screen 15. The continuous back and forth motion of the movable plate 17 can not only speed up the screening speed of the material, but also avoid the accumulation of material on the screen 15, causing the mesh of the screen 15 to be blocked, thereby affecting the normal operation of the grinding device.

[0038] A material guide assembly capable of transporting the material screened by the screen 15 is provided below the screen 15, and the material guide assembly includes a fourth motor 31 provided on an inner side wall of the grinding box 1, and an output shaft of the fourth motor 31 is connected to a driving roller 32, and a fixed seat 33 is provided at the bottom of another inner side wall of the grinding box 1, and a driven roller 34 is supported on the fixed seat 33, and a conveyor belt 35 is connected between the driving roller 32 and the driven roller 34, and the position of the driven roller 34 is lower than the driving roller 32; a discharge port 1 is provided at the lower end of the side wall of the grinding box 1 4, the position of the discharge port 14 is located on the right side of the driven roller 34; a storage box 5 is provided on the outside of the grinding box 1 for storing the material output by the grinding box 1, and the top surface of the storage box 5 is located below the bottom surface of the discharge port 14, so that the material can enter the storage box 5 easily; the active roller 32 is driven to rotate by the fourth motor 31, thereby driving the conveyor belt 35 and the driven roller 34 to rotate, so that the material sieved by the screen 15 falls onto the conveyor belt 35 and is then transported to the discharge port 14, and is sent to the storage box 5 through the discharge port 14.

[0039] Baffles 24 are respectively arranged on both sides of the bottom of the feed bin 2, and the two baffles 24 are symmetrically arranged along the discharge port 21, so that when the material is discharged from the discharge port 21 of the feed bin 2, the material can be crushed by the crushing assembly before being pulverized, ensuring that the material can be fully pulverized.

[0040] See also Figure 2 The bottom of the grinding box 1 is provided with a support column 6 to support the grinding box 1. An observation window 18 is provided below the grinding box 1, through which the grinding working condition inside the grinding box 1 can be checked at any time to understand the working progress of the grinding box 1.

[0041] The specific working process of the utility model is as follows: pouring the raw materials of the gelling material to be ground into the feed bin 2, driving the first motor 11, the second motor, the third motor, and the fourth motor 31 to rotate and the electric telescopic rod 16 to move, the rotating rod 22 in the feed bin 2 drives the stopper 23 to rotate, and the stopper 23 continuously fits and rotates away from the discharge port 21, so that the material in the feed bin 2 intermittently enters the grinding box 1, and the meshing rotation of the first crushing roller 41 and the second crushing roller 42 performs preliminary crushing on the material, and then the crushing blade 13 further crushes the material, and the crushed material falls onto the conveyor belt 35 through the screen 15, and the material on the conveyor belt 35 is sent to the storage box 5 through the discharge port 14 through the movement of the conveyor belt 35, and the electric telescopic rod 16 on the screen 15 drives the moving plate 17 to move back and forth on the screen 15, so as to avoid the accumulation of material on the screen 15 and speed up the screening speed of the material.

[0042] As described above, the above embodiments are only used to illustrate the technical solutions of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that the technical solutions described in the aforementioned embodiments can still be modified, or some of the technical features can be replaced by equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the various embodiments of the utility model.

Claims

1. A raw material precision grinding device for gelling materials, characterized in that: include: A powder grinding box (1), wherein a first motor (11) is provided on the outside of the powder grinding box (1), an output shaft of the first motor (11) penetrates into the inside of the powder grinding box (1) and is connected to a rotating shaft (12), and crushing blades (13) are evenly spaced on the outer surface of the rotating shaft (12); a discharge port (14) is provided at the lower end of the side wall of the powder grinding box (1); A feed bin (2) is fixedly arranged at the upper end of the grinding box (1), a feed inlet and a discharge inlet (21) are respectively arranged at the top and bottom of the feed bin (2), and a discharge control component is arranged inside the feed bin (2); A screen (15) is fixedly arranged inside the grinding box (1) and below the rotating shaft (12); an electric telescopic rod (16) is arranged on the upper surface of the screen (15); a movable plate (17) is connected to the free end of the electric telescopic rod (16); A material guiding assembly is arranged below the screen (15).

2. The raw material precision grinding device of a gelling material according to claim 1, characterized in that: The material discharge control assembly comprises a second motor arranged on the outer wall of the feed bin (2); a rotating rod (22) connected to the output shaft of the second motor is vertically arranged above the material discharge port (21) in the feed bin (2); a stopper (23) is arranged on the rotating rod (22); the stopper (23) is slidably connected to the material discharge port (21); and the bottom surface of the stopper (23) has the same shape as the top surface of the material discharge port (21).

3. The raw material precision grinding device of a gelling material according to claim 1, characterized in that: The invention also comprises a crushing assembly, wherein the crushing assembly comprises a third motor arranged outside the grinding box (1), a first crushing roller (41) and a second crushing roller (42) arranged in parallel inside the grinding box (1), the output shaft of the third motor penetrates into the grinding box (1) and is connected to the first crushing roller (41), and the first crushing roller (41) is meshingly connected to the second crushing roller (42).

4. The raw material precision grinding device of a gelling material according to claim 3, characterized in that: Baffles (24) are respectively arranged on both sides of the bottom of the feed bin (2), and the two baffles (24) are symmetrically arranged along the feed opening (21).

5. The raw material precision grinding device of a gelling material according to claim 1, characterized in that: The material guide assembly comprises a fourth motor (31) arranged on an inner side wall of the grinding box (1), the output shaft of the fourth motor (31) is connected to a driving roller (32), a fixing seat (33) is provided at the bottom of the other inner side wall of the grinding box (1), a driven roller (34) is supported on the fixing seat (33), a conveyor belt (35) is connected between the driving roller (32) and the driven roller (34), and the driven roller (34) is located lower than the driving roller (32).

6. A raw material precision grinding device for gelling materials according to any one of claims 1 to 5, characterized in that: A support column (6) is provided at the bottom of the grinding box (1), and a material storage box (5) is provided outside the grinding box (1), wherein the top surface of the material storage box (5) is located below the bottom surface of the discharge port (14).

7. The raw material precision grinding device of a gelling material according to claim 6, characterized in that: An observation window (18) is provided below the grinding box (1).

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